dva 路由跳轉

1.從props取出並傳遞history

取 const { history } = this.props


用 <button onClick={ () => history.push('/') }>go back home</button>

2.withRouter, Link

withRouter：

import { withRouter, Link } from 'dva/router'

<button onClick={ () => history.push('/') }>go back home</button>

export default withRouter(Counter);

Link：

import { withRouter, Link } from 'dva/router'; // 引入組件 

<Link to='/'>home page</Link>   使用

3.routerRedux

import { routerRedux } from 'dva/router';

effects: {
    *asyncDecr({ payload }, { call, put }) {
      yield call(delay, 1000);
      yield put({type: 'decrement' });
      yield put( routerRedux.push('/') ); // 路由跳轉
    }
  },

使用query-string庫可以將對象轉化為url參數：

effects: {
    *asyncDecr({ payload }, { call, put }) {
      yield call(delay, 1000);
      yield put({type: 'decrement' });
      // yield put( routerRedux.push('/') ); // 路由跳轉
      yield put( routerRedux.push({
        pathname: '/',
        search: queryString.stringify({
          from: 'product',
          to: 'home'
        })
      }) ); // 路由跳轉
    }
  },

效果：

http://localhost:8000/?from=product&to=home

  完整代碼：

第一個是model文件products.js   第二個是routes下的UI文件ProductPage.js

import { delay } from 'dva/saga';
import { routerRedux } from 'dva/router';
import queryString from 'query-string';

export default {
  namespace: 'products',
  state: {
    counter: 1,
  },
  effects: {
    *asyncDecr({ payload }, { call, put }) {
      yield call(delay, 1000);
      yield put({type: 'decrement' });
      // yield put( routerRedux.push('/') ); // 路由跳轉
      yield put( routerRedux.push({
        pathname: '/',
        search: queryString.stringify({
          from: 'product',
          to: 'home'
        })
      }) ); // 路由跳轉
    }
  },
  reducers: {
    'increment'(state, action) {
      return {
        counter: state.counter + 1
      }
    },
    'decrement'(state, action) {
      return {
        counter: state.counter - 1
      }
    }
  }
}

import React, { Component } from 'react';
import { connect } from 'dva';
import propTypes from 'prop-types';
import { Button } from 'antd';
import styles from './ProductPage.css';
import { increment, asyncDecr } from '../actions';

class ProductPage extends Component {
  constructor(props, context) {
    console.log(props);
    super();
  }
  render() {
    const { products, dispatch, increment, asyncDecr } = this.props;
    return (
      <div className={styles.wrapper}>
        <div className={styles.title}>結果 {products.counter}</div>
        <div>
          <p className={styles['p-wrapper']}>
            <Button type="primary" onClick={()=>dispatch({type:'products/increment',payload:1})}>incr</Button>&nbsp;&nbsp;
            <Button type="primary" onClick={()=>dispatch({type:'products/asyncDecr',payload:1})}>incr</Button>
          </p>
          <p className={styles['p-wrapper']}>
            <Button type="primary" onClick={()=>increment()}>increment</Button>&nbsp;&nbsp;
            <Button type="primary" onClick={()=>asyncDecr()}>asyncDecr</Button>
          </p>
          <Button type="primary">decr</Button>
        </div>
      </div>
    );
  }
}

ProductPage.propTypes = {
  counter: propTypes.object
};

const mapStateToProps = (state) => {
  return {
    products: state.products,
  };
};

export default connect(mapStateToProps, { increment, asyncDecr })(ProductPage);

 這里是最后一種路由跳轉方式，可以輕松應對各種場景 https://www.tipsns.com/read/34.html